Synonyms
Sophora arizonica S.Watson
Sophora arizonica var. formosa (Kearney & Peebles) P.C.Tsoong
Calia arizonica subsp. formosa (Kearney & Peebles) Yakovlev
Calia arizonica (S.Watson) Yakovlev
Sophora formosa Kearney & Peebles
Calia formosa (Kearney & Peebles) Yakovlev